Jealous: feeling or showing suspicion of someone's unfaithfulness in a relationship.

One could deny that she felt such feelings as her eyes wandered across a certain sight. The hands of man that was not her own was on a person she defined as her property. The burning feeling of rage appeared in her mind, beckoning her to show that she is the one in charge. It begged her to move her feet and push him away, slap him across the face with the back of her hand as she presents herself as a knight in shining army.

Except... She couldn't move. She turned around and left the scene, moving far away from it.

"Leon? Seriously? He isn't brighter than a sea urchin. The likes of him will ruin your brain," Kyoko sternly mentioned as she gazed into your eyes. Her elbow rested beside your head; her face closer than ever. She was jealous. It wasn't even a theory; it was a fact that showed to the surface behind that stoic expression she displayed.

"Look, I don't like him. I get the feeling that something is bound to happen, and he'll be the cause of it," Kyoko ensured as she crossed her arms. She was sure of it, as if she was foretelling the future. But then she saw your face and she tensed up mentally. She turned her head away as she read you like a book.

"Jealous? Of course I was... But that doesn't hide the fact that I don't trust Leon to be near my beloved."